CN109890301A - Radial type operation tool - Google Patents

Abstract

A kind of for being releasably connected to the surgical instrument of operation tool, the operation tool has two or more parts, and the part can carry out 360 degree hinged with different increments and direction.The hinged permission distal end of the part is spatially offset from proximal end, but the longitudinal axis of keeping parallelism.Surgical instrument includes the power disk in proximal end, and surgeon can apply linear force on the power disk, which is transmitted to distal end, this distally has the second tool, such as is fixedly attached to broach thereon.

Description

Radial type operation tool

Cross reference to related applications

This application claims the U.S. Provisional Application No. 62/353,261 and 2017 year Mays 23 submitted on June 22nd, 2016 The equity for the U.S. Provisional Application No. 62/510,111 that day submits, the two are both incorporated herein by reference.

Technical field

The present invention relates generally to the surgical instruments in the small incision surgery for being used to help installation orthopaedic prosthesis, more Body, it is related to a kind of surgical instrument with another operation tool releasable connection, for planting in hip replacement surgery Bony site is prepared before entering the femoral component of hip prosthesis.

Background technique

Joint implant is also for example known as articular prosthesis or joint replacement object, is the device of implantation of can performing the operation for a long time, is used for Partly or completely total replacement illness or impaired joint, such as hip, knee, shoulder, ankle or elbow in the musculoskeletal system of human or animal. Artificial femoral articulation is usually cup-and-ball joint, it is intended to match the function of natural joint as much as possible.In general, artificial nest is implanted into one piece In bone, and artificial ball is hinged in nest.Handle (stem) structure being connected on ball is implanted into another bone of patient, it will Ball is secured in place.

Femur and pelvis are combined together by the cup-and-ball joint of people's hip joint.The head of femur or ball is suitble to the hip of pelvis Mortar, formed allow leg can in a wide range forward, backward with the joint of lateral movement.

Various degenerative diseases and damage may need to replace all or part of hip joint using synthetic material.Prosthetic component Usually it is made of metal, ceramics or plastics or their combination.

Replacement of total hip and Hemiarthroplasty art are two kinds well-known for replacing patient's all or part hip The operation in joint.The femoral component and acetabular bone surface of replacement of total hip while replacement joint.Hemiarthroplasty art can be set Change femoral component or the acetabular bone surface in joint.The purpose of hip replacement surgery is to remove the part that hip joint is impaired and wears, And them are replaced with the artificial part of referred to as prosthese, it is therefore an objective at least restore the partial function of hip joint, it is including but not limited to extensive Stability, strength, moving range and the flexibility of compound articulation.

In total hip arthroplasty, the natural hip joint of patient is replaced by two main components: replacing acetabular fossa Acetabular cup component, and the femoral component or handle-ball part of replacement femoral head.

For setting acetabular cup, table that surgeon prepares bone by reaming to acetabular fossa to form for receiving cup Face.The cup can be held in place by bone cement or interference fit or press-fit or it can have suitable for bone to The perforated outer surface of interior growth.New acetabular shell is implanted into securely in the hemispherical nest prepared.

Next, preparing femur to receive handle.Cut off the proximal end of femur at least partly to expose the centre of bone.? Centre forms the matched chamber of shape with the handle of implantation.The top of femur is planished and keeps it smooth, allow handle with Bone surface is inserted into flushing.

The surgical instrument for being highly desirable to be used to prepare femur during hip replacement is suitable for Minimally Invasive Surgery, area of computer aided Operation or both.Instrument for femur preparation includes but is not limited to be used to cut off at least part femoral head to expose stock The osteotome or chisel in bone centre, and the hollow centre for cleaning and expanding bone form the shape with the handle of femoral component Broach (broach), reamer and the file for the chamber that shape matches.

During hip replacement surgery, surgeon by with osteotome or chisel (for perform the operation segmentation or bone slice Instrument) a part of fossa trochanterica is removed to open femur intermedullary canal.Then surgeon uses one or a series of increased in size Cavity preparation facilities, such as reamer or broach, to prepare the chamber for installing femoral stem (femoral stem).By using A series of devices being gradually increased, surgeon expand size and shape of the chamber needed for generating in femur.Sometimes, it is inserted into The part of the final broach of femoral cavity is with being tested femoral stem.

It is generally desirable to select and install to be suitable for the maximum sized femoral stem of particular patient.Select maximum suitable stock Bone handle helps to stablize the femoral component in femur, improves alignment, and reduces a possibility that femoral component is loosened and failed.It needs A kind of instrument being used to prepare femoral cavity and method allow to install the handle of the femoral component of appropriate size, to improve patient The alignment and stabilization of middle femoral component, while minimizing the interference to the tissue of patient.

In Minimally Invasive Surgery, by compared with small notch be inserted into and operate femur prepare instrument needs may with generate maximum can Appropriate instrument alignment needed for the chamber of energy size mutually conflicts.In order to appropriately enter and be aligned, it usually needs long notch and other invade The operation of entering property.On the outside of single incision or rear side approach hip replacement can simplify into femur.For minimally invasive total joint replacement The direct anterior approach of art, which has become, to become more and more popular.Preparing femur pipe in this way can be technical challenge.Femur Instrumentation include rear inside cyst membrane release, the stretching, extension and outward turning of leg of performing the operation and femur increase forward.It specially devises curved Bent offset femur broach is used to safely prepare femur pipe by this single notch.It has developed a kind of with for straight The broach handle (handle) of the lateral and forward direction offset of anterior approach is connect, to reduce the leverage to the near end of thighbone for preparing chamber Needs.

Because surgeon can be carried out left hip replacement surgery or right hip replacement surgery, current surgery doctor Broach handle that is raw while needing left-hand and dextrad to deviate.Similarly, depending on the body types of patient, i.e., big abdomen outstanding Portion (mid-section), the broach handle deviated at present may to be responsible for these patients without enough offsets.Therefore, must There need be the broach handle suitable for different situations and condition.

In short, for being suitable for, the improvement device of Minimally Invasive Surgery (MIS), there are unconsummated need for the system and program at present It asks.Especially to the improvement device of the femoral component preparation patient femur for installing hip prosthesis, there are unconsummated need It asks.It fits through operative incision more smaller than conventional available apparatus and introduces and operate desired improved device.It also needs to improve Device, the system and program, in insertion, operate and minimize during recalling the damage to meat, muscle and other soft tissues.Together When, it would be desirable to be able to improve the size of femoral component and is directed at and reduces the improved device of the risk of its loosening, the system and program.It is logical Often, easy to use and manufacture device and system are needed, tissue damage is minimized, simplify surgical operation, it is widely used, allow Healing has less complication faster, needs less postoperative fixation, and produces lower with operating cost.

Summary of the invention

It solves aforementioned and other problems and defect in known broach handle by radial type broach handle, and takes Obtained technical advantage.

The purpose of the present invention is radial type operation tool handles comprising power disk, two or more longitudinal portions, and one Or multiple radial type components, and the component for being releasably attached tool.Wherein one or more of radial type components Each of two or more parts are allowed to be rotated by 360 ° relative to other parts.

Another object of the present invention be one or more radial type components allow with discrete increment it is hinged two or more A part.

It may include one of the following or multiple that another object of the present invention, which is two or more longitudinal portions: main Part, central part, connector and broach part are wanted, and two radial type components allow double offset configurations.

A further object of the present invention is in double offset configurations, and major part is spatially offset with broach part, and Keep longitudinal upper major part parallel with the axis of broach part.

Another object of the present invention is that the space of major part and broach part is adjusted by two radial type components Offset.

A further object of the present invention is that the rotating range of discrete increment is 22.5 degree to 45 degree.

Another object of the present invention is that radial type component includes cam mechanism, wherein cam mechanism allow adjust two or The position of more parts relative to each other, and cam mechanism allows two or more parts relative to two or more Another in part is in a fixed position.

Another object of the present invention is for patient femur using radial type operation tool hand grip control with by prosthesis handle component The method being installed in the spinal canal of femur.It the described method comprises the following steps: providing radial type operation tool handle to be attached use In the broach of installation prosthesis handle component.Radial type handle for tool includes power disk, major lengthwise portion, central longitudinal portion, connection Body longitudinal portion, broach part connect the first radial type component of major lengthwise portion and central longitudinal portion, and connection center is vertical To the second radial type component of part and connector part, and it is connected to the broach part of connector longitudinal portion.The side Method is further comprising the steps of: broach being connected to broach part, adjusts the first and second radial type components so that main longitudinal direction portion Divide and be spatially offset with broach part, radial type handle for tool and broach is inserted into spinal canal by operative incision, positioning hinge Formula operation tool handle and broach are connect, femur pipe is generated by percussion power disk and prepares spinal canal, and takes out radial type from spinal canal Operation tool handle and broach.Radial type operation tool handle may be configured to left or right hip replacement surgery, and take Certainly the spatial offset between the physical trait of patient, major lengthwise portion and broach part can be used in radial type component One or two is adjusted.

After having examined the following drawings closely and being described in detail, other devices of the invention, equipment, method, feature and advantage It will be apparent to those skilled in the art or become apparent.It is intended to all these spare systems, method, feature It include in this specification, within the scope of the invention, and the protection by appended claims with advantage.

Detailed description of the invention

When read in conjunction with the accompanying drawings, foregoing summary and following detailed description of the invention are better understood with.But It is, it should be appreciated that the present invention can be implemented by different forms, therefore should not be construed as limiting in implementation given herein Example.

Fig. 1 is the perspective view of the embodiment of radial type broach handle；

Fig. 2A is the cross-sectional view of the embodiment of the radial type broach handle of exposed inner component；

Fig. 2 B is the exploded view of the trigger mechanism of the embodiment of radial type broach handle；

Fig. 3 A is the perspective view of power disk；

Fig. 3 B is the rear view of power disk；

Fig. 3 C is the cross-sectional view of power disk；

Fig. 4 is the perspective view of the half of major part；

Fig. 5 A is the perspective view of the half of central part；

Fig. 5 B is the cross-sectional view of central part；

Fig. 6 A is the perspective view of the half of broach part；

Fig. 6 B is the cross-sectional view of broach part；

Fig. 7 A is the perspective view of the first connector；

Fig. 7 B is the cross-sectional view of the first connector；

Fig. 8 is the perspective view of the second connector；

Fig. 9 is the perspective view of engaging pin；

Figure 10 is the perspective view of trigger mechanism；

Figure 11 is the perspective view of transmission lever.

Figure 12 is the perspective view of one embodiment of the invention；

Figure 13 A is the cross-sectional view for the embodiment described in Figure 12；

Figure 13 B is the side view for the embodiment described in Figure 12；

Figure 14 A is the exposure view of the radial type mechanism for the embodiment described in Figure 12；

Figure 14 B is the separation view of the radial type mechanism of the first connector of the embodiment described in Figure 12；

Figure 14 C is the separation view of the radial type mechanism of the second connector of the embodiment described in Figure 12；

Figure 14 D is the separation view of the radial type mechanism of the third connector for the embodiment described in Figure 12；

Figure 15 A is the front view of the major part for the embodiment described in Figure 12；

Figure 15 B is the cross-sectional view of the major part for the embodiment described in Figure 12；

Figure 15 C is the cross-sectional view of a part of the major part for the embodiment described in Figure 12；

Figure 16 A is the front view of the central part for the embodiment described in Figure 12；

Figure 16 B is the enlarged drawing of the proximal end of the central part for the embodiment described in Figure 12；

Figure 16 C is the top view of the distal end of the central part for the embodiment described in Figure 12；

Figure 16 D is the cross-sectional view of the proximal end of the central part for the embodiment described in Figure 12；

Figure 16 E is the cross-sectional view of the distal end of the central part for the embodiment described in Figure 12；

Figure 17 is the perspective view of the joint connector for the embodiment described in Figure 13 A；

Figure 18 is the front view of the connector spring for the embodiment described in Figure 13 A；

Figure 19 A is the perspective view of the first connector locking casing for the embodiment described in Figure 12；

Figure 19 B is the cross-sectional view of the first connector locking casing for the embodiment described in Figure 12；

Figure 20 A is the perspective view of the part J2 for the embodiment described in Figure 12；

Figure 20 B is the perspective view of the proximal end of the part J2 for the embodiment described in Figure 12；

Figure 21 A is the perspective view of the second connector locking casing for the embodiment described in Figure 12；

Figure 21 B is the cross-sectional view of the second connector locking casing for the embodiment described in Figure 12；

Figure 22 A is the perspective view in 180 drawing portions of the embodiment described in Figure 12；

Figure 22 B is the front view in 180 drawing portions of the embodiment described in Figure 12；

Figure 22 C is the cross-sectional view in 180 drawing portions of the embodiment described in Figure 12；

Figure 23 A is the perspective view of 180 interconnecting pieces of the embodiment described in Figure 12；

Figure 23 B is the side view of 180 interconnecting pieces of the embodiment described in Figure 12；

Figure 23 C is the front view of 180 interconnecting pieces of the embodiment described in Figure 12；

Figure 23 D is that 180 interconnecting pieces of the embodiment described in Figure 12 are slidably matched the cross-sectional view of axle journal；

Figure 24 is the side view of 180 fixing pins of the embodiment described in Figure 12；

Figure 25 is the perspective view of 180 pins of the embodiment described in Figure 13 A；

Figure 26 is the perspective view of 180 springs of the embodiment described in Figure 13 A；

Figure 27 A is the perspective view of the third connector locking casing for the embodiment described in Figure 12；

Figure 27 B is the cross-sectional view of the third connector locking casing for the embodiment described in Figure 12；

Figure 28 is the exploded view of 180 connectors of the embodiment described in Figure 12；

Figure 29 A is the perspective view of the top half of the broach part for the embodiment described in Figure 12；

Figure 29 B is the cross-sectional plan view of the top half of the broach part for the embodiment described in Figure 12；

Figure 29 C is the cross sectional front elevation of the top half of the broach part for the embodiment described in Figure 12；

Figure 29 D is the front view of the top half of the broach part for the embodiment described in Figure 12；

Figure 30 A is the perspective view of the bottom half portion of the broach part for the embodiment described in Figure 12；

Figure 30 B is the cross-sectional plan view of the bottom half portion of the broach part for the embodiment described in Figure 12；

Figure 30 C is the cross-sectional side view of the bottom half portion of the broach part for the embodiment described in Figure 12；

Figure 31 A is the perspective view of the axis platform for the embodiment described in Figure 13 A；

Figure 31 B is the cross-sectional side view of the axis platform for the embodiment described in Figure 13 A；

Figure 31 C is the top view of the axis platform for the embodiment described in Figure 13 A；

Figure 31 D is the front view of the axis platform for the embodiment described in Figure 13 A；

Figure 32 is the pillow spring/release spring side view for the embodiment described in Figure 13 A；

Figure 33 A is the perspective view of the sliding release member for the embodiment described in Figure 12；

Figure 33 B is the side view of the sliding release member for the embodiment described in Figure 12；

Figure 33 C is the cross-sectional side view of the sliding release member for the embodiment described in Figure 12；

Figure 34 A is the side view for the embodiment described in Figure 12, and wherein broach is connected to distal end；

Figure 34 B is the top view for the embodiment described in Figure 12, and wherein broach is connected to distal end；

Figure 34 C is the cross-sectional view of the engaging mechanism of the broach part of the embodiment described in Figure 12 and broach；

Figure 35 is the perspective view of the preferred embodiment of radial type broach handle；

Figure 36 A is the cross-sectional view of the embodiment of the radial type broach handle of Figure 35；

Figure 36 B is the exploded view of a part of the embodiment of the radial type broach handle of Figure 35；

Figure 36 C is the decomposition of the power disk and connecting elements of the major part of the embodiment of the radial type broach handle of Figure 35 Figure；

Figure 37 is the perspective view of the major part of the embodiment of the radial type broach handle of Figure 35；

Figure 38 A is the top view of the central part of the embodiment of the radial type broach handle of Figure 35；

Figure 38 B is the cross-sectional view of the central part of Figure 38 A；

Figure 39 A is the perspective view of the connector of the embodiment of the radial type broach handle of Figure 35；

Figure 39 B is the cross-sectional view of the connector of Figure 39 A；

Figure 40 A is the front view of the broach part of the embodiment of the radial type broach handle of Figure 35；

Figure 40 B is the cross-sectional view of the broach part of Figure 40 A；

Figure 41 is the perspective view of the clamp cam of the embodiment of the radial type broach handle of Figure 35；

Figure 42 is the perspective view of the push rod of the embodiment of the radial type broach handle of Figure 35；

Figure 43 is the perspective view of the button bar of the embodiment of the radial type broach handle of Figure 35；

Figure 44 is the perspective view of the broach lock of the embodiment of the radial type broach handle of Figure 35；

Figure 45 is the perspective view of the rod-type rotation lock pin of the embodiment of the radial type broach handle of Figure 35；

Figure 46 is the perspective view of the pivot pin of the embodiment of the radial type broach handle of Figure 35；

Figure 47 is the perspective view of the wheel lock pin of the embodiment of the radial type broach handle of Figure 35；

Figure 48 A-48E is the different configuration of perspective view of the embodiment of the radial type broach handle of Figure 35；

Figure 49 A is the perspective view of another embodiment of radial type broach handle；

Figure 49 B is the exploded view of a part of the embodiment of the radial type broach handle of Figure 49 A；

Figure 50 is the perspective view of the major part of the embodiment of the radial type broach handle of Figure 49 A；

Figure 51 is the perspective view of the central part of the embodiment of the radial type broach handle of Figure 49 A；

Figure 52 A is the perspective view of the broach part of the embodiment of the radial type broach handle of Figure 49 A；

Figure 52 B is the cross-sectional view of the broach part of Figure 52 A；And

Figure 53 is the perspective view of the button bar of the cross-sectional view of the broach part of Figure 52 B.

Specific embodiment

This theme will be described more fully hereinafter with reference to the accompanying drawings below now, representative embodiment is shown below.But This theme can be implemented by different forms, and should not be interpreted as the limitation to embodiment described in text.On the contrary, There is provided these embodiments is to describe and can be realized those skilled in the art.Unless otherwise defined, using herein All technical terms and scientific terms have it is identical with the normally understood meaning of theme those of ordinary skill in the art Meaning.All publications, patent application, patent and the other bibliography being mentioned above all by reference it is whole simultaneously Enter.

As predictive example, the following description of the present invention is related to a kind of radial type broach handle, and releasable connection is extremely Broach, the broach have two or more parts, and each part can be hinged with 360 degree.Specification describes a indication in four (4) Property embodiment.Each embodiment is made of 420 stainless steels of hardening, 440 steel of hardening and/or titanium.It is further envisioned that internal part by Hardening 420 or 440 stainless steels of hardening are constituted, and external component is made of titanium.It is however possible to use the operation steel of other forms.This Field is ordinarily skilled artisan will understand that description of the invention is not limited to broach handle.

Embodiment 1

Fig. 1 depicts the first embodiment of the present invention described under the background of broach handle 1000.Proximally arrive distal end Broach handle by power disk 1100, major part 1200, first and second trigger 1500A, 1500B, 1300 He of central part Broach part 1400 forms.Each part (main, center and broach) is made of two mirror image half portions, top (a) and bottom (b) Half portion.The half portion is semipermanent or is permanently fixed together.The semipermanent connection of mirror image half portion (part) allows to dismantle.It removes Except channel and cavity, each part be essentially all it is solid, this makes the internal part (describing below) of broach handle It can be received in assembly without excessively moving.

The proximal end of broach handle 1000 includes circular power disk 1100 (Fig. 3 A, 3B) and can have Chamfer Edge 1130.The diameter of power disk is preferably 2.5 inches, and overall thickness is 0.75 inch, including the uniform lateral for being about 0.4 inch from thickness 1120 prominent about 0.3 inch of arc dome surfaces (convex surface) 1110.Arc dome surface is distributed as unlimited vectorial force.Proximal end Surface 1110 is protrusion, and the radius of protrusion is about 2.27 inches.The profile in the distal side 1140 of power disk 1100 makes the outer of capable disk Edge 1141 and central part 1142 are thicker than middle section 1143 (Fig. 3 B and 3C).The middle section 1143 in the distal side 1140 of power disk Form 360 degree of channels.This allows to distribute mass center by balancing entire device assembly and enhances ergonomics to obtain more preferably Function.The central part 1142 in the distal side 1140 of power disk includes the first chamber 1144, allows the proximal end of major part 1200 1270 are on a permanent or semi-permanent basis fixed to power disk 1100.The shape on the periphery of the first chamber 1144 is similar to the proximal end of major part 1270, allow the press-fit between power disk and major part.Once fitted together with power disk 1100, major part 1200 it is close End 1270 can on a permanent or semi-permanent basis be linked together by welding or other known fixing means.

Major part 1200 (Fig. 4) is the vertical linear axis 1261 at distal end 1280 with bending section (1262).Bending Portion 1262 is preferably between 50 and 80 degree, and more preferable 67.5 degree.Proximally 1270 arrive bending section 1262 major part 1200 length is about 5.145 inches.From bending section 1262 to about 0.5 inch of absolute distal end.The width of major part 1200 is about It is 0.5 inch, and linear axes 1261 have about 0.4375 inch of height along longitudinal direction.The distal end 1280 of major part 1200 exists It at bending section 1262 and is being cylindrical beyond distal direction.Curved diameter is 0.875 inch, and the diameter of absolute distal end is 0.6250 inch.The above measurement and it is next those be exemplary drawings.Contemplate other sizes.

Major part 1200 includes two mirror image half portion/part 1260A, 1260B of length along longitudinal direction.For clarity, Bottom mirrored portion is depicted only in Fig. 4.For convenience, bottom mirrored portion is omitted in applicant from reference marker The suffix " B " of the various pieces of 1260B.Suitably and if necessary, applicant includes suffix " A " and " B ".

Each mirrored portion includes triggering well 1263, along two channels 1264,1265 that the longitudinal axis extends, accommodates the first connection Second chamber 1266 of the proximal end 1231 of device 1230 and the first spring 1,240 two blind cylindrical holes 1267 and to trigger well 1263 is Center and transverse to the third channel of the longitudinal axis 1,261 1268.The profile of the major part longitudinal axis 1261 has by 1272 He of circular outside Two parallel sides 1269 that the inside 1271 of relatively flat connects, the inside 1271 of two of them mirrored portion 1260A, 1260B It is combined together when two mirrored portions assemble.Mirrored portion (can for good and all weld) along inside or semi-permanently connect each other It connects.

Identical pin 1600 (Fig. 2A and 2B) is inserted into two blind cylindrical holes 1267 to be directed at two in assembling Mirrored portion 1260A, 1260B.

The triggering well 1263 of each mirrored portion 1260A, 1260B extend through the width of each mirrored portion, so that outside Opening on side 1272 is less than the opening in inside (flat inner side) 1271.The first and second trigger 1500A of this permission, 1500B is placed in major part 1200 and is fixed once assembling two mirrored portions.

Two channels 1264,1265 of the longitudinal axis extend to the proximal end of the second chamber 1266 from the distal end of triggering well 1263.Each It is preferably 0.0525 inch of recessed profile that channel, which has depth,.Two channels 1264,1265 are dimensioned in cooperation two Each of transmission lever 1210,1220.

The distal end 1280 of each mirrored portion 1260A, 1260B are semi-cylindricals, have the stepped tooth gear teeth 1281, have About 0.0595 inch of depth extending therefrom.

First and second triggers (Figure 10) include main body 1570 and the protruding component 1580 with concave surface 1581.It is convex It plays element 1580 and extends beyond body upper surface and with 0.750 inch of length.Concave surface 1581 is designed to the thumb with people It is with referring to ergonomics compatible.The length of main body 1570 is 1.1125 inches.The width of trigger is about 0.250 inch.Triggering The distal end 1574 of device includes the vertical side 1575 extended downwardly from the top surface 1571 of main body and extends further downward more than master The inclined surface 1573 of the bottom surface 1572 of body 1570.Inclined surface 1573 be located in the width of trigger side (when towards In left side when the distal end 1574 of trigger).Length transverse to trigger is trigger port 1560, which exists Extend the width of trigger in the bottom surface 1572 of trigger 1500.The third channel of trigger port 1560 and major part 1200 1268 are overlapped.

The equidistance being spaced apart on the either side of trigger port 1560 is on the bottom surface 1572 of trigger 1500 Two cylindrical holes 1575.Each hole 1575 has initial diameter and subsequent small diameter.The larger diameter component in hole accommodates Spring 1520 is triggered, and small diameter accommodates triggering pin 1530, triggering pin 1530 can be press-fitted into cylindrical hole 1575 simultaneously It is surrounded by triggering spring 1520.

Upon assembly, the trigger port and third channel 1268 of major part 1200 allows to be inserted into triggering pivot pin 1540, allow to keep first and second trigger 1500A, 1500B alignment.

When proximally arriving distal end thereof major part 1200, the inclined surface of trigger 1500A (top trigger) 1573 ordinatedly contact with transmission lever 1210, and transmission lever 1210 is placed in left channel 1264 (Fig. 4).When proximally 1270 arrive far When 1280 observation major part 1200 of end, the inclined surface 1573 of trigger 1500B (bottom trigger) is matched with transmission lever 1220 Ground contact is closed, transmission lever 1220 is placed in right channel 1265.

First connector 1230 (Fig. 7 A, 7B) of connection major part 1200 and central part 1300 is cylindrical and barbell Shape.The proximal end 1231 and distal end 1232 of first connector 1230 all have the diameter bigger than middle section 1233.Proximal end 1231 Usually convex surface, and distal end 1232 be it is flat, perpendicular to the longitudinal length of the first connector 1230.First connector has along the The cylindrical channel 1234 that the length of a connector extends.Other than distal end 1232, diameter (0.0800 English of cylindrical channel It is very little) it is consistent in the whole length of the first connector.At distal end 1232, the diameter of cylindrical channel is 0.1800 English It is very little.

The size of cylindrical channel 1234 is to allow engaging pin 1250 (Fig. 9) to be inserted into and move.The length of engaging pin 1250 Degree is 1.265 inches, and diameter is 0.08 inch.When there is no power to act on broach handle 1000, the distal end of engaging pin 1250 1251 have bigger diameter, so that the cooperation of distal end 1252 of engaging pin can be located at the distal end 1232 of the first connector 1230 Cylindrical channel 1234 enlarged diameter in.

The proximal end 1231 that the first connector 1230 is surround in middle section 1233 is the first spring 1240, is contained in In the second chamber 1266 at the distal end 1280 of major part 1200.

Transmission lever 1210,1220 (Figure 11) has 2.580 inches of length and 0.05 inch of radius.Transmission lever 1220 with The inclined surface 1573 of engaging pin 1250 and bottom trigger 1500B ordinatedly contact, so that when trigger 1500B in bottom is activated When, inclined surface 1573 causes transmission lever 1220 to be distally moved, and engaging pin 1250 is caused also to be distally moved.

Transmission lever 1210 is matched with the proximal end 1231 of the first connector 1230 and the inclined surface 1573 of top trigger 1500A Ground contact is closed, so that inclined surface 1573 causes transmission lever 1210 further distad to be moved when top trigger 1500A actuating It is dynamic, it is distally moved so as to cause the first connector 1230.

The central part 1300 (Fig. 5 A and 5B) of broach handle 1000 is mutual by major part 1200 and broach part 1400 Connection.Central part 1300 includes proximal end 1350 and distal end 1360, the proximal end 1350 and central axis 1371 at 67.5 degree of angle, The distal end 1360 is in the opposite direction at 67.5 degree of angle.

Similar to major part 1200, central part 1300 (Fig. 5 A and 5B) includes two mirrored portions of length along longitudinal direction 1370A (being shown in Fig. 1), 1370B.Specified and major part of the applicant to each element of the mirrored portion of central part 1200 it is identical, and for broach part 1400 be also it is identical.For 3.6752 inches of total length, the length of proximal end 1350 About 0.775 inch, the length of central axis 1371 is about 2.3512 inches, and about 0.497 inch of distal end is (in view of proximal end and far The deviation angle at end).Central part 1300 includes the four-way of the length of two blind cylindrical holes 1372 and center of extension axis 1371 Road 1373.

The proximal end 1350 of central part 1300 includes three layers of open chamber 1380, which is shaped as receiving major part Distal end 1232 (second layer chamber) development length of 1200 distal end 1280 (first layer chamber 1381), the first connector 1230 is 0.250 inch, the distal end 1251 of engaging pin 1250 is allowed to be distally moved (third layer chamber 1383) in effect.

The distal end of first layer chamber 1381 includes the stepped tooth gear teeth 1384, with about 0.0595 inch of depth, with master Want the equivalent tooth 1281 of the distal end 1280 of part 1200 compatible.Second layer chamber 1382 is according to the distal end 1232 of the first connector 1230 Forming, so that the first connector 1230 is securely fixed in second layer chamber when being assembled into second layer chamber 1382.Third layer Chamber 1383 be it is cylindrical, allow engaging pin 1250 by 1220 transverse bars act on when be distally moved.Third layer chamber 1383 Distal end cooperates with fourth lane 1373, the length of 1373 center of extension axis 1371 of fourth lane.

The distal end 1360 of central part 1300 is configured to identical as the distal end 1280 of major part 1200.That is, every The distal end 1360 of a mirrored portion 1370A, 1370B include third chamber 1362 to accommodate 1331 and of proximal end of the second connector 1330 Spring 1320, and the distal end 1360 is the semicircle with the stepped tooth gear teeth 1361, with about 0.0595 inch of depth.

Broach part 1400 (Fig. 6 A, 6B) allows broach (not shown) to broach handle.The proximal end 1411 of broach part exists Similar in construction to the proximal end of the central part with main chamber 1415, the distal end of the main chamber 1415 includes the stepped tooth gear teeth.Second Chamber 1416 is shaped according to the distal end of the second connector 1330.The distal end 1412 of broach part includes the chamber for accommodating broach proximal end 1417.Two blind cylindrical holes 1414 allow to be inserted into pin 1600, so that when assembling two mirrored portions of broach part, pin Nail allows the alignment between mirrored portion.

Connection central part 1300 and the second connector 1330 (Fig. 8) of broach part 1400 are cylindrical and barbell shapes. The proximal end 1331 and distal end 1332 of second connector 1330 all have the diameter bigger than middle section 1333.Proximal end 1331 has Generally convex surface, and distal end 1332 is flat, the beveled edge with the longitudinal length perpendicular to the second connector 1330. Different from the first connector 1230, the second connector 1330 is solid, and does not have the circle extended along the length of connector Columnar shaft.

Upon assembly, the proximal end 1331 of the second connector 1330 is assemblied in the third chamber of the distal end 1360 of central part 1300 In 1362, and surrounded by spring 1320, it is identical as the configuration of the first connector assembly.

Third transmission lever 1310 is assemblied in the fourth lane 1373 of the central axis of central part 1300.Third transmission lever with The distal end 1251 of engaging pin 1250 and the proximal end 1331 of the second connector 1330 ordinatedly contact.

Two identical pins 1600 are inserted into two blind cylindrical holes 1372, so that working as two mirror images of central part When part 1370A, 1370B are assembled, pin allows the alignment between mirrored portion.The broach part 1400 of broach handle is in distal end On broach and broach part are connected with each other.Broach part includes proximal end, and the proximal end and central axis are at 67.5 degree of angle.Broach The center shaft length of handle is about 0.4 inch, and distal length is about 0.650 inch.The distal length of broach part is about 0.75 Inch.It broach part can be there are two blind cylindrical hole.The distal end of broach part may include broach lock pin 1420, prevent broach It is rotated around b axis.

The proximal end of the top and bottom of broach part 1400 is all mirrored portion, and structure is similar in addition to the three of central part The proximal end of central part except layer chamber.The proximal end of the top and bottom of broach part has the double-deck chamber, and wherein first layer chamber is (close Hold chamber) it is identical as the first layer chamber of central part, allow to accommodate the distal end of central part.Second layer chamber (distal chamber) is according to The distal end of two connectors shapes, so that the second connector is securely fixed in second layer chamber when being assembled into second layer chamber.

The distal end of broach atop part includes the cylindrical hole that diameter is 0.806 inch, proximally extends about 0.575 English It is very little.Slot on the flat surfaces of broach part extends the length of cylindrical hole.Have at the top of broach part transverse to broach portion Divide the channel of longitudinal length.The size in the channel is matched with broach pin.

The distal end of the bottom of broach part includes the cylindrical hole of proximally facing extension.Similar to the top of broach part, The channel for crossing broach partial longitudinal extent is arranged at bottom.

Alternatively, the distal end of broach part may include the broach part of the embodiment of the present invention 2 and/or 3 engaging mechanism (after Face description).

When two mirrored portions 1370A, 1370B of central part 1300 and two mirrored portions of major part 1200 When 1260A, 1260B are fitted together, so that the distal end 1280 of major part 1200 is located at the first layer chamber 1381 of central part In.The gear teeth 1281,1361 for forming 15 cooperations allows major part and central part to carry out hingedly with 24 degree of increment.Match The quantity of the gear teeth 1281,1361 of conjunction determines the hinged amount of major part and central part.In the examples provided, shape The gear teeth cooperated at 15.The quantity for increasing the gear teeth of cooperation leads to lesser hinged increment, and the tooth of less cooperation The gear teeth increase increased hinged amount.For example, the gear teeth of 30 cooperations leads to the hinged of 12 degree of every increment.However, 8 are matched The gear teeth of conjunction leads to 45 degree hinged.

When two mirrored portions 141A, 1410B of broach part 1400 and two mirrored portions of central part 1300 When 1370A, 1370B are fitted together, so that the distal end 1360 of central part 1300 is located in the chamber of broach part 1400, formed The gear teeth of 15 cooperations allows central part and broach part to carry out with 24 degree of increment hinged, independently of major part 1200 and central part 1300 radial type component.Radial type component between major part and central part in an identical manner Operation.

Specific characteristic as of the invention described in above-described embodiment and subsequent embodiment is that central part can phase Major part, broach part or both are carried out hinged.This hingedly with mainly, the bending section of center and broach part combines Favorable characteristics be, major part can spatially from broach partial offset but along longitudinal axis keeping parallelism (a-a of Fig. 1 and b-b.Although not describing in subsequent embodiment, the longitudinal axis a-a and b-b are similarly applicable in subsequent embodiment.Figure 48 A-48E Depict the various configurations of the invention using 3 structure of embodiment.Although showing description the described of the embodiment of the present invention 3 to match It sets, they are equally applicable to other embodiments described herein, including embodiment 1.) inclined between major part and broach part It moves or the amount of space separation can be by hinged between major part and central part and/or central part and broach part (rotation) measures to adjust.Physical trait depending on patient, it is contemplated that the offset.That is, being set for carrying out hip joint The tall and thin patient of hand-off art, surgeon do not need as the patient more mellow and fuller for abdomen (midsection) and seat area that Offset more than sample.By the keeping parallelism between major part and broach part but the longitudinal axis of spatial offset, surgeon is in power The power transmitted on disk is transmitted to broach part with identical linear direction and is eventually transferred to broach.

Another beneficial aspects of articulation of the invention are that broach handle 1000 can be used for left or right hip joint and set It changes.By the connector between hinged major part, central part and broach part, surgeon can be by handle from right broach device Tool is converted to left broach instrument, and vice versa.

Many aspects and embodiment of the invention provide a kind of improvement bone and prepare (such as in hip replacement surgery Femur) method.Radial type broach handle allow to carry out broach handle quickly and it is simple adjust, with adapt to whether surgery Doctor is carrying out right hip replacement or left hip replacement and the body height (abdomen prominent or not outstanding) of patient. Radial type the first mechanical coupling 1010 and the second mechanical coupling 1020 allow surgeon to change major part 1200 and marrow The offset of needle part 1400.By using the embodiment of the present invention, surgeon only needs using a radial type broach handle 1000, without being selected from multiple broach handles.

According to required offset, surgeon is by one or two of startup trigger 1500A, 1500B.On if Trigger 1500A is activated, then inclined surface 1573 is distally moved transmission lever 1210, acts on the proximal end of the first connector On 1231.The effect is distally moved the first connector 1230 in chamber 1266, and central part and major part are separated.One Two parts of denier are sufficiently separated (that is, depth of gear), and the stepped tooth gear teeth 1281,1384 are disengaged from each other, allow surgeon with First mechanical coupling 1010 complete 360 degree or its subset are carried out hinged gear teeth depending on cooperation by 24 degree of increment Quantity.Once realizing being desired offset from for the first mechanical coupling 1010, surgeon discharges top trigger 1500A, makes winner The proximal end 1350 of the distal end 1280 and central part of wanting part is re-engaged due to spring 1240.That is, working as transmission lever 1210 act on the first connector 1230 when being distally moved, and spring 1240 is compressed.Once due to upper trigger 1500A quilt It discharges and is released stress on the first connector 1230, then allow spring 1240 to expand, so that the first connector 1230 is moved to Proximal direction and the stepped tooth gear teeth 1281,1384 in chamber 1266 engage again, the first mechanical coupling are locked in place.

If bottom trigger 1500B is activated, surgeon can be hinged on broach part 1400 and central part The second mechanical coupling between 1500.By starting lower trigger 1500B, inclined surface 1573 is distally moved transmission lever 1220, transmission lever 1220 acts in engaging pin 1250.The movement acts on transmission lever so that engaging pin 1250 is distally moved On 1310, transmission lever 1310 is acted on the proximal end 1331 of the second connector 1330.By being distally moved the second connector, marrow Needle part 1400 is separated with central part 1300.Once two parts are sufficiently separated (that is, depth of gear), the stepped tooth gear teeth are just It is disengaged from each other, surgeon is allowed to cut with scissors the second mechanical coupling 1020 complete 360 degree or its subset with 24 degree of increment It connects.Once realizing being desired offset from for the second mechanical coupling 1020, surgeon discharges bottom trigger 1500B, so that center The proximal end of partial distal end 1360 and broach part is re-engaged due to spring 1320.That is, when transmission lever 1310 is made When with being distally moved on the second connector 1330, spring 1320 is compressed.Once since bottom trigger 1500B is released And released stress on the second connector 1330, then allow spring 1320 to expand, so that the second connector 1330 is in chamber 1362 It is moved along proximal direction, and the stepped tooth gear teeth engage again, the second mechanical coupling 1020 is locked in place.

According to circumstances allow with size, broach part 1400 using various broach.

Embodiment 2

Figure 12,13A, 13B and 14A depict the second embodiment of radial type broach holder 2000 of the invention.Radial type marrow Needle handle 2000 includes 4 parts, has 3 connectors, allows the hinged of various pieces.In the described example, 2 connect Head is carried out hingedly with 45 degree of increments, and a connector is carried out hingedly with 90 degree of increments.It should be understood that the hinged amount of each connector can With variation.The broach handle for proximally arriving distal end includes power disk 2100, major part 2200, the first connector locking casing 2600, central part 2300, interconnecting piece 2 2900, the second connector lock casing 2700,180 connectors 2400 (Figure 28), third Connector locks casing 2800 and broach part 2500.Major part and central part can be configured to two mirror image half portions, top Portion (a) is with bottom (b) half portion or as single structure.Half portion can be semipermanent or be permanently fixed together by.Mirror image half portion The semipermanent connection of (part) allows to dismantle.Each part is essentially all solid.

Broach handle 2000 allows the part of broach handle to carry out 360 degree of rotations relative to each part with different increments Turn.Although the embodiment of broach handle as described below is made of three articulations, broach handle be can according to need Including more or fewer articulations.Above-described embodiment 1 includes two articulations.Moreover, as described below, Mei Gezeng The rotation amount of amount can be changed by the construction of each connector.In the embodiment of embodiment 2, the first and second radial types are connect Head can be rotated by 45 degree of increment, and third articulation can be rotated by 90 degree of increment.Each connector can be suitable Hour hands rotate counterclockwise 360 degree.

The proximal end of broach handle 2000 includes in the same manner as in Example 1 or similar round power disk 2100 (Fig. 3 A, 3B).It is main Want the proximal end 2270 of part 2200 to fit together with power disk 2100, can by welding or known fixing means for good and all or Semi-permanently link together.

Major part 2200 (Figure 15 A-C) is the vertical linear axis 2261 at distal end 2280 with bending section (2262). Bending section 2262 is preferably between 50 and 80 degree, and more preferable 67.5 degree.The length of major part 2200 is about 5.7 inches.It is main The width for wanting part 2200 is about 0.5 inch, and linear axes 2261 have about 0.4375 inch of height along longitudinal direction.In bending section The master exceeded at the distal end 2280 of major part 2200 at 2262 and in a distal direction the axis 2281 that is slidably matched is cylinder Shape.The diameter of the main axis that is slidably matched is about 0.6250 inch.The diameter of the main axis that is slidably matched, which is less than, forms the first flange 2282 Curved diameter.

Master at the distal end of major part 2,200 2280 be slidably matched axis 2281 periphery include 8 it is evenly spaced (45 degree of separations) hole 2283 is to fix 8 lock pins 2284.The distal end of the main axis 2281 that is slidably matched includes main aperture 2285 and main spring Depression 2286 is to accommodate the first joint connector 2230 (Figure 17) and the first connector spring 2240.First joint connector 2230 is Cylindrical.The diameter of proximal end 2231 is greater than the axis 2232 of the first joint connector.Axis is perpendicular near distal end 2234 Hole 2233.First joint connector connects major part 2200 and central part 2300.The size design of main spring depression 2286 The first joint connector 2230 is allowed to move to nearside at when user applies linear force to major part in the proximal direction.

The proximal end 2231 that the first joint connector 2230 is surround in middle section 2233 is the first connector spring 2240, The first connector spring 2240 is contained in the main spring depression 2286 at the distal end 2280 of major part 2200.

The central part 2300 (Figure 16 A-E) of this embodiment of broach handle 2000 is by major part 2200 and interconnecting piece J22900 is connected with each other.Central part 2300 includes proximal end 2350 and distal end 2360, the proximal end 2350 and central axis 2371 at 67.5 degree of angles, the distal end 2360 is in the opposite direction at 67.5 degree of angles.

The length of proximal end 2350 is about 0.775 inch, and the length of central axis 2371 is about 2.3512 inches, distal end 2360 Length is about 0.497 inch, and total length (in view of deviation angle proximally and distally) is 3.6752 inches.

The proximal end 2350 of central part 2300 includes eight tine shape annulus 2351, is had and eight 2353 weights of matching surface Eight locating slots 2352 closed.Eight locating slots, 2352 to eight matching surfaces 2353 are further distally extending, allow main Eight lock pins 2284 of part 2200 are placed in below matching surface (see Figure 14 B).The tine quantity of annulus corresponds to lock pin Quantity.

Changed using the hinged increment that the eight tine shape annulus with eight lock pins may be implemented 45 degree.Increase pin and tine Quantity will reduce increment size.However, less pin and tine will increase the size of increment variation.It is expected that increment size variation It can be in 10 degree to 90 degree of range.Although it is contemplated that smaller and bigger hinged increment changes.

The internal diameter of annulus 2351 is dimensioned to match with the main axis 2281 that is slidably matched.The proximal end of central part 2300 2350 include hole 2351 and depression 2357, and being sized and shaped for of hole 2351 and depression 2357 receives the first joint connector 2230 distal end 2234.First joint connector 2230 is firmly seated in the depression 2357, so that the first joint connector It is not moved between central part 2300.First joint connector is fixed to the proximal end of central part, lock by lock pin 2359 Pin 2359 is located at the distal side of eight tine shape annulus, which extends through the hole 2233 of the first joint connector.Tap hole 2358 Positioned at the other side of pin 2359, allow to remove pin from central part.The first connector being contained in main spring depression 2286 Spring 2240 surround the first joint connector 2230 middle section 2232 so that the first connector spring 2240 movably will in Center portion point 2300 is connected to major part 2200.The distal end of major part and the proximal end of central part form the first articulation AJ1 (Figure 14 B) allows the part to carry out with 45 degree of increments hinged.

First connector locks the distal end 2280 and central part of casing 2600 (Figure 19 A-B) around major part 2200 2300 proximal end 2350.First connector locking casing is for lock pin 2284 to be locked in locating slot 2352.First connector The inner surface for locking casing includes 2 group of 8 tooth (2610,2620).First connector locks one at the proximal end 2601 of casing 2600 Group tooth 2610 is sized and shaped for cooperating between the tine 2354 of annulus 2351 and is placed in matching surface 2353 On, allow the first connector locking casing to be rotated in a clockwise direction and the lock pin 2284 of major part 2200 is locked to central part Divide in 2300 locating slot 2352.The quantity of tooth 2610,2620 corresponds to the quantity of tine and lock pin.

Positioned at the first connector locking casing 2600 distal end 2602 at second group compared with short tooth 2620 in the first connector The proximal end of locking casing 2600 and first group of 2610 lateral shift of tooth.Second group of tooth 2620 is assembled to away from central part 2300 In the groove 2355 (Figure 16 B) in 2352 distal side of locating slot, so that first when the first connector locking casing 2600 rotates clockwise Connector locking casing is stopped moving proximal direction, and power acts on the first connector locking casing 2600 at this time.

The length of first connector locking casing 2600 prevents casing from rotating counterclockwise to unlocked position, because of the first connection Device is locked casing and is " squeezed. " between major part and central part due to the power of the first connector spring 2240.

The distal end 2360 of central part 2300 has geometry identical with the distal end 2280 of major part 2200.Also It is to say, the center at the distal end 2360 of the central part 2300 at bending section 2362 is slidably matched axis 2361 and beyond distal side side It is cylindrical upwards.The be slidably matched diameter of axis 2361 of center is about 0.6250 inch.Center be slidably matched axis diameter it is small Diameter in bending section 2362, to form flange 2363.

The be slidably matched periphery of axis 2361 of center includes 8 evenly spaced (45 degree separate) holes 2364 to fix 8 locks Pin 2365.The distal end of center sliding axle 2361 includes that centre bore 2366 is connected with central spring depression 2367 with accommodating the second connector Device 2330 (Figure 17) and the second connector spring 2340 (Figure 18).The size and shape of second joint connector are connect with the first connector Device 2230 is identical, and connects central part 2300 and interconnecting piece J2 2900.Second joint connector 2330 is cylindrical.Closely The diameter at end 2331 is greater than the axis 2332 of the first joint connector.Close to the hole 2333 for being perpendicular to axis of distal end 2334.Second Joint connector 2330 is fixed near bending section 2390 by lock pin nail 2935.Lock pin nail extends through the second joint connector Second joint connector is maintained on interconnecting piece J2 2900 by hole 2333.Central spring depression 2367 is dimensioned to make User allows the second joint connector 2330 mobile to nearside when applying linear force to central part 2300 in the proximal direction.

The proximal end that the second joint connector 2330 is surround in middle section 2332 is the second connector spring 2340, is held It is contained in the central spring depression 3267 at the distal end 2360 of central part 2300.The size and shape of second connector spring and One connector spring 2240 (Figure 18) is identical.Central spring depression 2367 is dimensioned to when user is in the proximal direction in Center portion, which gives, allows the second joint connector 2330 mobile to nearside when adding linear force.

Figure 20 A-B depicts the interconnecting piece J2 2900 with proximal end 2910 and distal end 2920.Proximal end 2910 is similar to center The proximal end 2350 of part 2300, having 8 tine shape, 2,914 2911,8 tine shape of annulus, 2914 annulus 2911 includes that eight (8) are a fixed Position slot 2912 and a matching surface 2913 in eight (8).The geometry and central part of the locating slot 2912 of interconnecting piece J2 annulus 2911 The geometry of cyclotomy ring 2351 is identical.All other geometry of 2 annulus 2911 of interconnecting piece is opposite, the second company of permission It connects device locking casing 2700 and reversely rotates locking direction.That is, compared with central part annulus 2351,8 matching surfaces 2913 are located at the opposite side of locating slot 2912.The distal end of central part and the proximal end of J2 form the second articulation AJ2 (figure 14C), the part is allowed to carry out with 45 degree of increment hinged.

The distal side of adjacent proximal ends 2910 is bending section 2930.The distal end 2920 of interconnecting piece J2 2900 is solid plane, forever (welding) or semi-permanently it is attached to 180 connectors 2400 long.

Second connector, which locks casing 2700 (Figure 21 A-B), has the geometry similar with the first connector locking casing 2600 Shape simultaneously works in a similar way, in addition to the spin locking direction of the second connector locking casing and the first connector lock The spin locking of casing is contrary.The inner surface that second connector locks casing includes 2 groups of 8 teeth, is at proximal end 2701 2710, distal end 2702 at be 2720.

Design the spin locking side of the second connector locking casing 2700 opposite with the first connector locking casing 2600 It is locked to allowing to rotate the first connector at once by using both hands with the direction opposite with the second connector locking casing 2700 2 connectors of locking and unlocking, every hand are exclusively used in specifically locking casing casing 2600 simultaneously.

180 connectors 2400 allow surgeon that broach part 2500 is rotated 180 degree, such as by broach handle 2000 from the right side Handle is converted to left handle, and vice versa.180 connectors include 2 main components, and 180 drawing portions 2410 (Figure 22 A-C) and 180 connect Socket part 2430 (Figure 23 A-D), they are movably connected with each other by 180 pins 2450 (Figure 25).

The length in 180 drawing portions 2410 (Figure 22 B) is about 1 inch.Proximal end 2411 is flat surfaces, semi-permanently or permanently Ground is fixed to the distal end of interconnecting piece J2 2900.Proximal end 2411 can be permanently attached to connect by two positioning pin 2411-1 The distal end of portion J2 2900 is to be welded.Distally 2415 include four (4) tine shape annulus 2418, during geometry is similar to 8 tine shape annulus 2351,2911 of the proximal end of 2300 and interconnecting piece J2 2900 of center portion point.The distal end in 180 drawing portions includes diameter About 0.625 inch of matching hole 2416, and the distal dimension in 180 drawing portions is suitble to 180 interconnecting pieces to be slidably matched axle journal 2435.Packet The double-layered central hole for including mesopore 2413 and spring depression 2412 extends to the length in 180 drawing portions 2410.Spring depression 2412 Diameter is greater than the diameter of mesopore 2413.The size of the spring depression of proximal end can accommodate the proximal end 2451 and 180 of 180 pins 2450 Spring 2470.

180 interconnecting pieces (Figure 23 A-D) include 135 degree of bending sections 2433 near distal end 2432 and proximal end 2431.With 135 degree It is width that pin retaining hole 2437 extends 180 interconnecting pieces that bending section 2433 is consistent.The proximal end of 180 interconnecting pieces includes extending outwardly More than the retaining hole 2434 of 135 degree of bending sections.The size of retaining hole can receive the distal end 2452 of 180 pins 2450.180 interconnecting pieces Proximal end 2421 is cylindrical and is slidably matched axle journal 2435 including 180 interconnecting pieces with a hole 2436 in four (4), with fixation Four (4) lock pins 2465 (Figure 13 A), are press fit into 180 interconnecting pieces and are slidably matched in the hole of axle journal, with the 180 drawing portions of engagement A lock slots 2417 in 2410 four (4).180 interconnecting pieces be slidably matched the tine shape of axle journal 2435 and 4 annulus 2418 with main portion The distal end the divided mode similar with the proximal end of central part works.

180 pins 2450 (Figure 25) include the thrust face 2453 for 180 springs 2470 (Figure 26), are had at proximal end 2451 The diameter bigger than axis 2454.2412 size compatibility of spring depression of 2410 proximal end of the diameter of thrust face and 180 drawing portion.So And the diameter of axis 2454 is compatible with the retaining hole 2434 of the interconnecting piece of mesopore 2413 and 180 proximal end in 180 drawing portions.180 pins 2450 distal end 2452 includes hole 2455, and hole 2455 is perpendicular to near-far side direction.

The assembling of 180 interconnecting pieces 2430 is so that 180 springs of pin 2450 and 180 2470 pass through the spring depression in 180 drawing portions 2412 are distad inserted into, spring depression of 180 springs of pin 2450 and 180 2470 around 2454, the 180 drawing portion of axis of 180 pins 2450 2412 originate in the proximal end 2411 in 180 drawing portions 2410.The distal end 2452 of 180 pins 2450 extends through the guarantor of 180 interconnecting pieces 2430 Hole 2434 is held, so that the pin retaining hole 2437 of the interconnecting piece of hole 2455 and 180 of 180 pins 2450 is aligned.Pass through pin retaining hole 2437 180 pins 2480 (Figure 24) are inserted into 180 pin holes 2455, so that 180 pins are fixedly mounted in 180 interconnecting pieces.

The distal end in 180 drawing portions and the proximal end of 180 connectors 2430 form third articulation AJ3 (Figure 14 D).Namely It says, 180 drawing portions can be rotated relative to 180 interconnecting pieces, be allowed with a articulated position in four (4) of 90 degree of increments.

Third connector locking casing 2800 (Figure 27 A-B) surround the close of the interconnecting piece of distal end 2415 and 180 in 180 drawing portions End.Third connector locking casing is for lock pin 2465 to be locked in locating slot 2417.The function of third connector locking casing The first connector can be similar to and lock casing 2300, in addition to there are third connector locking casing two (2) to organize a tooth in four (4).? One group of tooth 2804 at the proximal end 2801 of third connector locking casing is sized and shaped for being suitable in 180 drawing portions Groove 2419.And be located at distal end 2802 at longer group of tooth 2803 be sized and shaped for rotating to four lock pins 2465 before Face or the position of separate lock pin.

The length of third connector locking casing 2800 is controlled by being clipped between 180 interconnecting pieces and 180 drawing portion connector faces Sleeve rotating processed.

It can be rotated by 45 degree of increment notwithstanding the first and second articulations, it is envisioned that these Connector can have more or fewer lock pins and locating slot, to allow the different rotary amount of every increment.Additional pin and fixed Position slot is more than a rotation amount that will reduce every increment in eight (8).On the contrary, the less pin in eight (8) and locating slot with description will increase The rotation amount of every increment.

This is similar with third articulation AJ3, and described embodiment includes 4 lock pins and locating slot.Additionally or more Few lock pin and locating slot will affect the rotation amount of every increment.For third articulation, it is contemplated that lock pin and locating slot are most Smallest number will be that two (2) are a.This allows every increment 180 degree to rotate.

The broach part 2500 (Figure 13 C) of broach handle 2000 allows easy to quickly for broach to be connected to broach hand Handle.Broach part engaging mechanism allows the connection of robust, and preventing broach, around its axis, (i.e. it is vertical when engaging with broach part Axis) rotation.Although broach part described below engaging mechanism is for broach to be connect with broach handle, engaging mechanism can To be used in other environment, for being quickly connected and disconnected from two devices and ensuring that device is secured and is securely engaged.

Broach part connects the distal end of 180 connectors and broach.The proximal end 2510 of broach part by welding or it is some its It fixes the mode of two parts semi-permanently or is permanently attached to 180 interconnecting pieces 2430.Broach part includes growing along longitudinal direction The top and bottom half portion (2505,2501) of degree.Broach part 2500 further includes axis platform 2550 (Figure 31 A-D), pillow spring (2580 (Figure 32), sliding release 2530 (Figure 33 A-C), 2595 (not shown) of release spring 2590 (Figure 32) and shop bolt.

The top half 2505 (Figure 29 A-D) and bottom half portion 2501 (Figure 30 A-C) of broach part are respectively provided with protrusion Top surface and bottom surface and similar to major part, the planar side surface of central part and 180 interconnecting piece parts.Broach part Height be greater than broach handle other parts height.

The distal end 2506 of top half has the hole 2507 that is slidably matched, to receive the broach axis (not shown) of broach.Sliding Matching hole 2507 terminates at the top half of axis platform seat 2503, and top and bottom half portion of the axis platform 2503 in broach part is welded It is formed when together.The top half for being formed in the axis platform depression 2503 in top half has groove at proximal end 2508 2504, allow the radial male extension of broach axis to be located in axis platform depression 2503 together with axis platform 2550.Top half Bottom surface includes male guide member 2509, and when cooperating with bottom half portion 2501, male guide member 2509 is for alignment purposes.It leans on The top half 2505 of nearly proximal end includes hole 2511, and hole 2511 is used for during the assembling of top and bottom half portion using to be aligned The pin 2595 of two half-unit.Radius surface 2512 on the inner wall of axis platform depression 2503 is the retainer of axis platform 2550, so that Before being attached broach by pillow spring 2580, axis platform is firmly held on these surfaces.

The bottom half portion 2501 of broach part includes the bottom half portion of the depression that is slidably matched for axis platform, axis platform depression bottom First thrust face 2513 (mesopore) in portion keeps the position in pillow spring 2580 and sliding release depression and channel 2516 in bottom half The side in portion.The distal end 2520 of bottom half portion includes the hole 2521 that is slidably matched for sliding release member 2530.Sliding release is recessed Cave and channel 2516 proximally 2510 distal end 2520 for extending to nearly bottom half portion.

Bottom half portion 2501 further includes the dowel hole 2517 close to proximal end, is similar to during assembly for being directed at two The top half of half portion.It is corresponded to each other with the convex guiding piece 2509 on top half, bottom half portion includes notch 2518, notch The 2518 convex guiding piece 2509 being sized and shaped to for alignment purposes.

It is L-shaped for sliding release member 2530 (Figure 33 A-C).The handle 2531 for sliding release member includes three-dimensional arrow 2536, and the leg 2532 for sliding release member includes sliding release pin 2533, the hole that is slidably matched of pin 2533 and bottom half portion 2501 2521 concentric fits.When being mounted on the bottom half portion of broach part, sliding release pin 2533 would extend over broach part Distally, be located at broach in multiple holes.This feature limitation broach rotates about the axis thereof.Slide the phase of the leg of release member 2530 To (inside) side, the second thrust face 2534 and notch 2535 are directed at release spring 2590 (Figure 32).Release spring discharges sliding Part 2530 and axis platform 2550 apply constant force.Release spring engagement and disengaging sliding release pin 2533, sliding release pin 2533 are controlled Broach rotation processed.When broach is for preventing broach around the rotation of broach axis, it is necessary to use release spring.

Axis platform 2550 (Figure 31 A-D) is substantially rectangular block.The geometry of top surface 2551 and the broach on broach axis Pit (scallop) is complementary, and allows the close connection of broach Yu broach part 2500.Distal face 2552 includes vertical channel 2553 (notches) are used as the thrust face of release spring 2590.The bottom (downside) 2554 of axis platform 2550 includes that pillow spring gap is recessed Cave 2555 makes pillow spring 2580 fixed by the first thrust face 2513 and axis platform depression 2503 of bottom half portion.Pillow spring 2580 is to axis platform 2550 apply constant pressure, it is ensured that are engaged by locking when using broach.The pedestal of pillow spring is pushed against in the bottom half portion of broach, pillow It is pushed against at the top of spring on the top surface 2558 of pillow spring gap depression 2555.

The top 2551 of axis platform 2550 includes inclined concave upper surface, so that the proximal end 2556 of top surface is higher than distal end 2552.Distally the width of the concave surface at 2552 is wider than the width at proximal end 2556.Arc is locked out in the proximal end of top surface 2556.The surface lock arc is engaged with the radial groove on broach axis.This connection and pillow spring 2580 between surface to Upper pressure prevents any transverse shifting of broach, it is made to keep locking in place.Side at the top of axis platform forms a side in two (2) and stops Dynamic arc 2557 is nested on a same curved surfaces (radius surface) 2512 in two (2) on the top half of broach part.Stop side Dynamic arc 2557 limits the return altitude in broach top half, it is ensured that does not have barrier or interference when insertion broach axis.Top The geometry simulation on surface receives broach outer shaft diameter and broach is allowed to connect.It is slidably matched hole 2507 when by the insertion of broach axis When, it forces pillow spring 2580 to be compressed, until the radial groove of broach axis is overlapped and pillow spring 2580 is compressed with arc 2556 is locked.

Similar to embodiment 1, specific characteristic of the invention is that instrument can be hinged with the various pieces including instrument.The hinge The favorable characteristics connect combined with the bending section of various pieces allow major part spatially with broach partial offset, but keep The parallel longitudinal axis (a-a and b-b) Figure 34 A-B.Offset or space interval amount between major part and broach part can lead to It crosses between major part and central part, hinged (rotation) between central part and J2 connector is measured to adjust.Depending on suffering from The physical trait of person, the offset are desired.That is, for the tall and thin patient for carrying out hip replacement surgery, outside Section doctor does not need more offsets as the patient more mellow and fuller for abdomen and seat area.By in major part and broach Keeping parallelism but the longitudinal axis of spatial offset, the power that surgeon transmits on power disk are transmitted between part with identical linear direction To broach part and it is eventually transferred to broach part.

Another is beneficial to be characterized in that 180 connectors allow surgeon by appliance configuration to be right or left instrument, depends on more The hip joint changed.

Aspect and embodiment of the invention provide a kind of method prepared for improving bone, such as in hip replacement Femur in operation.As discussed, radial type broach handle allows to carry out broach handle quickly and simply to adjust, with suitable Answer whether surgeon is carrying out right hip replacement or left hip replacement and the body height of patient (is protruded or do not dashed forward Abdomen out).

If carrying out left hip or when right hip replacement depending on surgeon, surgeon may need hinged the Three articulation AJ3 using by broach handle configurations as left handle or right handles.If surgeon needs hinged third connector, Then surgeon will rotate clockwise third locking casing 2800 to discharge lock pin 2465, to allow surgeon close first Apply linear force to 180 drawing portions in side direction.By pulling 180 drawing portions to surgeon, surgeon is by lock pin 2465 from calmly Position slot 2417 is detached from.This allows surgeon with hinged 180 interconnecting piece of 90 degree of increment, using by broach handle configurations as left handle Or right handles.Once reaching required configuration, surgeon will discharge 180 drawing portions, 180 springs of the 180 drawing portions due to compression In power and be distally moved.Lock pin 2465 will be located in locating slot 2417.Then surgeon rotates third lock counterclockwise Casing 2800 is determined, so that tooth 2803 before lock pin 2465, prevents lock pin to be detached from from locating slot 2417.Third locking Casing 2800 is held in place, because third locks clamp sleeve between 180 interconnecting pieces and 180 drawing portions, because of 180 springs Pressure be applied with distal force in 180 drawing portions.

Depending on offset needed for the body sizes (big abdomen or syntexis) as patient, surgeon may need Either one or two of hinged first and second articulations AJ1 and AJ2.The function class of first and second articulations It is similar to third articulation.In order to discharge lock pin from the locating slot in the first articulation, surgeon needed along the inverse time Needle direction rotates the first connector locking casing.Lock pin is fixed in the locating slot of the first articulation, surgeon will The first connector locking casing is rotated clockwise, until one group eight (8) a tooth is positioned directly in front of lock pin.Similar to third Connector locks casing, and the first connector locks casing and is extruded in major part and center by the power of the first connector spring 2240 Between part, which is applied in major part 2200, in distal direction towards central part 2300.

As previously mentioned, the operative orientation of the second articulation AJ2 is contrary with the first articulation.Namely It says, in order to unlock lock pin 2365, the second connector locking casing is rotated in a clockwise direction.It is fixed in order to which lock pin 2365 to be locked in In the slot 291 of position, surgeon will rotate in a counter-clockwise direction the second connector locking casing.

The first and second articulations in above description can be rotated in either direction with 45 degree of increments.If Using additional lock pin, then the rotation amount of every increment reduces.However, the rotation amount of every increment increases if the quantity of lock pin is less than 8 Add.

According to circumstances allow with size, broach part 2500 using various broach.Surgeon can match in surgeon Set a articulation in three (3) of broach handle 2000 it is hinged before or after be attached broach 1 (Figure 34 A-C).

The proximal end of broach 1 includes the axis 1.1 with pit 1.2, the cooperation of lock arc 2556 of shape and axis platform 2550.Broach Proximal end further include broach hole.The size and shape in broach hole and 2533 concentric fit of sliding release pin of broach part.Sliding The cooperation in release pin 2533 and broach hole limits broach 1 and rotates about the axis thereof.

Broach 1 can be connected to broach part to hole 2507 is slidably matched by insertion broach axis 1.1 by surgeon 2500.When broach axis, which enters, is slidably matched hole 2507, broach axis is contacted with the convex tip surface 2551 of axis platform.Due to top The slope profile and axis platform spring 2580 on surface 2551 push up axis platform 2550, so broach axis is inserted into the hole that is slidably matched In, it forces axis platform to travel further into axis platform 2503 along the sliding of top surface 2551.This is continued until that broach pit 1.2 prolongs Lock arc 2556 is extended through, makes broach axle position in broach part 2500.To ensure correctly to install, sliding release pin 2533 is remote with broach The broach hole at end cooperates.Sliding release spring 2590 acts on sliding release member, especially distal side and slides release pin, to ensure to slide Dynamic release pin keeps cooperating with broach hole.

In order to remove broach from broach part 2500, surgeon will be to the mobile sliding release 2530 of nearside, and compression is slided Dynamic release spring simultaneously separates sliding release pin 2533 with broach hole.Once separation, surgeon can the clockwise or inverse time Needle rotates broach 1, so that sliding release pin is no longer aligned with broach hole.This rotation of broach also will be so that carry out self-locking arc 2556 Broach axis 1.2, especially broach pit be detached from, allow surgeon from broach part to distal end remove broach 1.

Embodiment 3

Figure 35 and 36A, B, which depict the third of the invention described under the background of radial type broach handle 3000, to be implemented Example.The radial type broach handle for proximally arriving distal end includes power disk 3100, major part 3200 (Figure 37), central part 3300 (Figure 38 A, B), connector 3700 (Figure 39 A, B) and broach part 3500 (Figure 40 A, B).Major part and central part can lead to It crosses cam mechanism to be hinged to another, the cam mechanism is by clamp cam 3400A (Figure 41), push rod 3810 (Figure 42), bar Shape spins lock pin 3830 (Figure 45) and two wheel safety pin 3840 (Figure 47) compositions.Similar to cam mechanism, clamp cam 3400B allows central part 3300 hinged relative to connector 3700.Third cam mechanism, clamp cam 3400C, button bar 3820 (Figure 43) and two wheel safety pins 3840 allow broach 3900 releasedly to engage with broach handle 3000.

Power disk 3100 is similar with the power disk of Examples 1 and 2 and provides identical function.Figure 36 C depicts the decomposition of power disk Figure, the power disk can be used boss (boss) and pin kept to be permanently attached to major part, thus the distal end press-fitting of boss It closes the proximal end of major part and is fixed by the pin for the axis for extending perpendicular to major part.This of power disk and major part Kind connecting elements is suitable for the invention embodiment 2 and 4.

Figure 37 depicts the major part 3200 for having consistent length with the major part of Examples 1 and 2.Distally 3201 by 22.5 degree of slight bending portion and cylindrical appendix 3202 with chamber 3203 form, and chamber 3203 accommodates the first end of push rod 3810 3811 (Figure 42).22.5 degree of bending sections allow instrument to create straight line tool in corresponding rotation.Push rod 3810 be it is cylindrical and And be made of first end 3811, groove 3813, it is dimensioned in rod-shaped rotation lock pin 3830, it is attached that extension circumference is located at first end Closely, the length of second end 3812 and slot 3814 perpendicular to the push rod 3810 being located near second end 3812.Push rod 3810 passes through rod-shaped Rotating dog 3830 is maintained at the appropriate location of major part 3200, and the distal end that rod-shaped rotating dog 3830 extends through major part is attached Close cylindrical channel 3205 and it is located in the groove 3813 of push rod.The farthest side direction of cylindrical appendix 3202, which has, to be surrounded Multiple flat surfaces 3204 of circumference.The quantity of flat surfaces 3204 can change from four (4) to 32 (32), preferably have There are eight flat surfaces.The quantity of flat surfaces 3204 determines the amount of increment rotation.In example as shown in figure 37, have eight (8) distal end of a flat surfaces allows to carry out hinged, permission between major part 3200 and central part 3300 with 45 degree of increments Complete 360 degree rotation between two parts.It is also contemplated that distal end does not have flat surfaces, therefore major part and central part divide it Between rotation can be completed in the case where no fixed increment.

Figure 38 A and 38B depict central part 3300.Distally 3302 and proximal end 3301 both relative to central part 3300 Main body 3305 has bending.Amount of bow proximally and distally is equal and is substantially equal at the distal end 3201 of major part 3200 Bending.Proximal end 3301 and distal end 3302 all have chamber 3306, and chamber 3306 accommodates the second end 3812 of push rod 3810.Chamber 3306 exists There are flat surfaces 3304 at its circumference, correspond to the flat surfaces 3204 and connector 3700 of the distal end of major part 3200 Proximal end 3702.When the distal end of major part 3202 is placed in the chamber 3306 of proximal hub part, the two parts cannot It carries out relative to each other hinged.The feelings being similarly in the chamber of the distal end 3302 for being proximally located at central part 3300 of connector Condition.

Near the proximal end of central part 3301, perpendicular to the opening 3307 for extending into chamber 3306 of chamber 3306.For The first cam clamp 3400A that central part is distally moved from major part includes thumb wheel 3401, is eccentric in thumb wheel The axis 3402 at center and the guiding piece 3403 for being equally eccentric in axis center are inserted into opening 3307.The diameter of opening 3307 Size corresponding to the diameter of axis 3402, and the slot 3814 of push rod 3810 can receive guiding piece 3403.Axis 3402 includes keeping Slot 3402-1.Clamp cam is removably connected to by a wheel lock pin 3840 in two (2) by passing through 3303 insertion of pin opening Central part, and the axis of wheel lock pin 3840 cooperates in the retaining groove 3402-1 of axis 3402.When cam clamp is counterclockwise When rotation is to be fixed to central part for major part, lug (Tab) 3404 is used as locking mechanism, so that when surgeon is hit Cam clamp does not move when power disk.

The distal end 3302 of central part 3300 is similarly configured for the proximal end 3301 of central part and including similarly attached It is connected to the second cam clamp 3400B of central part 3300.

Connector 3700 is connect with central part 3300 and broach part 3500.Connector 3700 has proximal end 3701, It is configured similarly to the distal end of major part, wherein it is made of slight bending portion and cylindrical appendix 3702, cylindrical appendix 3702 have chamber 3707, and chamber 3707 accommodates the first end 3811 (Figure 42) of the second push rod 3810.Cylindrical appendix 3702 it is nearest Side direction has multiple flat surfaces 3704 around circumference.Similar to the distal end of major part, the quantity of flat surfaces 3704 It can be changed according to the hinged size of desired increment.The flat surfaces quantity of connector and major part need not be equal.

The distal end 3706 of connector 3700 includes the matching surface 3705 extended, to be releasably connected to broach part 3500.The shape of matching surface 3705 corresponds to the chamber 3508 at the proximal end 3501 of broach part 3500.Connector 3700 it is remote End 3706 includes opening 3708, and the proximal end 3821 of button bar 3820 is placed in opening 3708.Button bar 3820 is cylindrical connection member Part, and the spin lock pin 3830 of the rod by extending channel (not shown) is maintained at the appropriate location of connector 3700.It is similar In push rod 3810, the proximal end 3821 of button bar 3820 includes the groove 3823 extended around the circumference of button bar, rod spin lock pin 3830 are placed in groove 3823.

As described above, button bar 3820 allows connector 3700 to be connected to broach part 3500.It is attached in the centre of button bar 3820 Closely it is slot 3826, extends to the center of button bar.The slot 3814 for being functionally similar to push rod 3810 of the slot.The distal end 3822 of button bar There are two sharp skewer 3825, each point skewers to have channel 3824, pivot pin 3850 is allowed to lock 3860 by broach for tool Opening 3862 and the insertion of the opening 3505 of broach part are to keep broach to lock (Figure 44).

Broach part 3500 (Figure 40 A, B) is removably couplable to connector 3700 via button bar 3820.It wraps proximal end 3501 Chamber 3508 is included, the distal end 3821 of button bar is allowed to dispose wherein.It is logical on the side of broach part near proximal end 3501 Road 3505, the side of the broach part extend to chamber 3508.Similar to central part 3300 proximally and distally in 3301,3302 Opening 3302, broach part 3500 includes similar opening.This allows third clamp cam 3400C to dispose wherein and passes through Two wheel safety pins 3840 (Figure 47) are fixed to broach part.

Broach part 3500 accommodates broach and locks 3860 (Figure 44), and broach is removably connected to broach handle.Broach Partial distal end 3502 includes opening 3503, and 3503 size of being open can receive the proximal end of broach 3900.The proximal end of broach includes Concave portion, the hook 3861 for allowing broach to lock engage broach and broach are fixed on broach handle.In order to make broach lock from marrow Needle is detached from, and the distal end 3502 of broach part includes the opening 3507 positioned at downside, allow broach lock 3860 by channel 3862 around Pivot pin 3850 (Figure 46) fixed to button bar 3820 is rotated with disengaged position.The engagement and disengaging of broach lock and broach are by third A clamp cam 3400C control.

Broach 3900 rotates in order to prevent, and broach lock pin 3901 is inserted into chamber (not shown) and the broach part of broach proximal end Distal end 3502 on respective chamber 3504.

Application method

Using the broach handle of 3rd embodiment, surgeon is led to when preparing such as spinal canal to be inserted into artificial limb shank part It crosses and is rotated in the counterclockwise direction third clamp cam broach is connected to broach handle, mobile broach part is in a linear distal end On direction, broach lock is caused to extend to the downside of broach part.By the distal end of broach insertion broach part, broach lock pin and broach Part engages, and prevents broach from rotating.Surgeon is rotated in a clockwise direction third clamp cam, and broach is fixed to broach portion Point, engage broach part with connector.

According to the physical trait of patient, surgeon may need to deviate on the power disk of broach handle the linear axes of broach. Surgeon can configure broach handle at least one of five kinds of different configurations, (l) straight；(2) height deviates to the right； (3) height deviates to the left；(4) two-way right avertence is moved；(5) two-way left avertence moves (8A-48E referring to fig. 4).Use the first and second clampings The surgeon of cam can make major part and central part hinged with connector relative to each other, thus counteracting force disk.This It is to be realized by being rotated in a clockwise direction the first clamp cam or the second clamp cam or both.If surgeon is revolved Turn the first clamp cam, then central part is linearly distally moved, and is detached from from major part.Once being detached from, surgery doctor Be born with can hinged (rotation) major part with counteracting force dome.Once there is enough offsets, the first clamp cam is along counterclockwise Direction rotates, and moves central part along the proximal direction engaged with major part, further hinged to prevent.Central part Can similarly with it is hinged relative to using the connector of the second clamp cam to carry out.Once having enough offsets, surgeon Broach can be located on broach handle, so that broach is inserted into spinal canal by operative incision.Broach handle and broach are positioned, is permitted Perhaps surgeon is exerted a force on broach handle by percussion power disk and is operated on spinal canal.Once spinal canal sufficiently prepares, Just broach handle and broach are taken out from spinal canal, to allow to install prosthesis handle component.

As above in conjunction with the embodiments 1 discussed, specific characteristic of the invention is that central part can be relative to main portion Point, broach part or both carry out it is hinged.It is this hingedly with mainly, the advantageous spy that combines of the bending section of center and broach part Sign is, major part can be spatially from broach partial offset, but along the longitudinal axis (a-a and b-b) Fig. 1 keeping parallelism.Mainly Offset or space separation amount between part and broach part can pass through major part and central part and/or central part Hinged amount (rotation) between broach part adjusts.Physical trait depending on patient it is expected the offset.That is, right In the tall and thin patient for carrying out hip replacement surgery, surgeon is not needed as more mellow and fuller for abdomen and seat area Patient's offset more like that.Pass through the keeping parallelism between major part and broach part but the spatial offset longitudinal axis, surgeon The power transmitted on power disk with identical linear direction be transmitted to broach part and be eventually transferred on broach (for double offsets, 8D and 48E referring to fig. 4 to the left and to the right).

As applicable, when broach handle is in offsets in height, when leftward or rightward, major part can be formed with broach part About 45 degree of angles, as Figure 48 B and 48C are discribed.

The ability permission broach handle that the various pieces of broach handle are hinged uses in left or right side and can To adapt to the difference of the physical trait of patient, such as their perimeter.

Embodiment 4

Figure 49 A and 49B depict the fourth embodiment of the present invention described under the background of radial type broach handle 4000. The radial type broach handle for proximally arriving distal end includes power disk 4100, major part 4200 (Figure 50), (figure of central part 4300 And broach part 4500 (Figure 52 A, 52B) 51).Major part and central part can be mutually hinged by pivot pin 4600.Pivot Axis/radial type component allows central part 4300 relative to the hinged of broach part 4500.Cam mechanism, clamp cam 4400, Button bar 4820 (Figure 53) and two wheel safety pins 4440 allow broach 4900 releasedly to engage with broach handle 4000.Clamping The clamp cam 3400C for being functionally similar to 3rd embodiment of cam 4400.

Power disk 4100 is similar to and provides function identical with the power disk of embodiment 1,2 and 3.Power disk 4100 is fixed to master Want the proximal end 4202 of part 4200.

Figure 50 depicts the major part 4200 with length consistent with the major part of embodiment 1,2 and 3.Distally 4201 Including two flaring extensions 4203, this two flaring extensions 4203 have two angled surfaces for forming central point 4203.The angle on each surface is 22.5 degree.The width of flared distal end is greater than the width of major part main body 4205.Each flaring Extension includes hole 4204, and pivot pin 4600 is allowed to be press-fitted into hole.Two flared ends are spaced apart to allow central part Proximal end insertion flared end between.

Figure 51 depicts the central part 4300 with length consistent with the central part of embodiment 1,2 and 3.Central part Main body 4305 cross section be usually have height and width rectangle.Distally 4302 and proximal end 4301 all formed have semicircle The interval 4303 of shape end and channel 4304, the diameter in channel 4304 are slightly larger than the diameter in the hole 4204 of major part.Interval 4303 height is less than the total height of central part main body, so that two flaring extensions 4203 of major part can be inserted in it Between, and the proximal end of main body 4305 includes the inclined surface 4306 above and below interval, therefore, angled surface 4306 correspond to the inclined surface 4203 of major part.The proximal end 4301 of central part is by extend through hole 4204 and 4304 Pivot pin 4600 is connected to the distal end 4201 of major part.Pivot pin is press-fitted into hole 4204.Due to central part Hole 4304 have the diameter bigger than pivot pin, therefore central part can around pivot pin rotate, allow main portion Divide and each of central part corresponding angled surface cooperates, forms 135 degree of angle.According to central part relative to main Partial rotation direction, broach handle are configurable to left side broach handle or right side broach handle.Major part and central part Direct-connected connection configuration can also be formed by dividing.The structure of the distal end 4302 of central part is identical as proximal end 4301, and is connected to broach The proximal end of part 4500.

Broach part 4500 is analogous to the structure of the broach part 3500 of 3rd embodiment, allows broach 3900 releasable Ground is connected to broach handle 4000.But the proximal end 4501 of broach part is different from the proximal end of the broach part of embodiment 3.Such as Shown in Figure 49 A, 52A and 52B, broach part 4500 may include 135 degree of bending section 4510.

Broach part 4500 is removably couplable to central part by pivot pin 4600, and it's similar to main portions The connection of the central part divided.More precisely, the structure of the proximal end 4501 of broach part is similar to the distal end of major part 4201, and allow hinged formation left or right side broach handle of the central part 4500 relative to broach part 4500.Center 135 degree of bendings are formed between part and broach part.Similar with major part and central part, central part and broach part can To form direct-connected connection configuration.

Proximal end 4501 includes chamber 4508, and button bar 4820 is allowed to dispose wherein.It is to extend to chamber near proximal end 4501 Channel 4505 on the side of 4508 broach part.It is similarly to the broach part 3300 of embodiment 4.Channel 4505 allows to press from both sides It holds the placement of cam 4400 and is fixed to broach part, described two wheels wherein and by two wheel pins 4840 (Figure 49 B) Pin 4840 is inserted by two channels of the longitudinal axis of the proximal end perpendicular to broach part.

Button bar 4820 is cylindrical connecting element, and the spin lock pin 3830 of the rod-type by extending channel (not shown) is protected It holds in the appropriate location of connector 3700.Similar to push rod 3810, the proximal end 3821 of button bar 3820 includes the circumference around button bar The groove 3823 of extension, rod-type spin lock pin 3830 are placed in the groove.

Button bar 4820 is used to broach 4900 being releasably connected to broach handle 4000.Near the centre of button bar 3820 It is slot 4826, slot 4826 extends to the center of button bar.The slot 3814 of the push rod 3810 for being functionally similar to 3rd embodiment of the slot, Once thus clamp cam is connected to broach part, the guiding piece 4403 of clamp cam 4400 is in place.The distal end 4822 of button bar has There are two sharp skewer 4825, each point skewer has channel 4824, and pivot pin 4850 is allowed to be inserted through opening 4860 Opening 4862 and the opening 4505 of broach part are to keep zipper.

The structure of clamp cam 4400 (Figure 41) is similar to clamp cam 3400A, B, C of embodiment 3, has thumb wheel 4401, axis 4402 and guiding piece 4403.Axis 4402 includes retaining groove 4402-1.When rotating clockwise cam clamp with by broach When being fixed to central part, lug (Tab) 4404 is used as locking mechanism, so that cam presss from both sides when surgeon's percussion power disk Tool does not move.Description in relation to clamp cam 4400 please refers to embodiment 3.Those of in the element and embodiment 3 of clamp cam Identical, in addition to reference marker is with " 4 " rather than " 3 " start.

Broach part 4500 accommodates broach lock 4860 and (is similar to clamp cam, embodiment 3 describes the structure of broach lock. Referring to fig. 44 and Detailed description of the invention.The reference marker of embodiment 4 is with " 4 " beginning, and the reference marker of embodiment 3 is with " 3 " beginning.Marrow The distal end 4502 of needle part includes opening 4503, and 4503 size of being open can receive the proximal end of broach 4900.Broach 4900 it is close End 4901 includes concave portion, allows the hook 4861 of zipper 4860 to engage broach and broach is fixed to broach handle (figure 49B).In order to make broach lock be detached from broach, the distal end 4502 of broach includes the opening 4509 positioned at downside, and broach is allowed to lock 4860 (Figure 53) is rotated with disengaged position around the pivot pin 4850 (Figure 46) for being fixed to button bar 4820 by channel 4862.It is convex by clamping The engagement and disengaging of wheel 4400 control broach lock and broach.

The rotation of broach 4900 broach lock pin (identical as the 3901 of embodiment 3) is inserted into the chamber of broach proximal end in order to prevent Corresponding chamber 4504 on the distal end 4502 of (not shown) and broach part.

Application method

The broach handle of fourth embodiment allows surgeon that broach handle configurations are deviated broach, left side offset for right side Broach or linear broach.Using the broach handle of fourth embodiment, surgeon will be convex by being rotated in the counterclockwise direction clamping Broach is connected to broach handle by wheel, moves button bar 4820 along linear distal direction, so that zipper 4860 extends to broach portion Below the downside divided.Broach is inserted into the distal end 4502 of broach part, and broach lock pin is inserted into the chamber 4504 of broach part In, prevent broach from rotating around its linear axes.Clamp cam is rotated in a clockwise direction by surgeon, and broach is fixed to marrow Needle part, so that button bar 4820 proximally moves in chamber 4508.Prevent clamp cam from further revolving by lug 4404 Turn.Lug is quick stop member, provides top dead-centre etc.

According to the physical trait of patient, surgeon may need to deviate on the power disk of broach handle the linear axes of broach. Surgeon can relative to each other with broach part adjusting/swing/hinged major part and central part, make the offset of power disk with For right laterally offset or left laterally offset.This is to make angled surface each other by adjusting various pieces relative to each other It contacts to realize.The relative position of holding part is until surgeon's applied force is to adjust a part relative to another part (main, center, end connection).

The ability that the various pieces of broach handle are hinged allows broach handle to use in left or right side.

Although the present invention, other embodiments have been described in detail by reference to certain embodiments of the present invention It is possible.Therefore, spirit and scope of the appended claims should not necessarily be limited by the description of embodiment wherein included.It should manage Solution, those skilled in the art can in the case where not departing from the spirit and scope of the present invention being defined by the following claims into Row various changes, replacement, addition and change.In addition, scope of the present application is not limited to device, mistake described in specification Journey, machine, manufacture and material composition, component, method and/or step specific embodiment.Those of ordinary skill in the art will be from This disclosure be readily appreciated that presently, there are or later develop process, machine, manufacture, material composition, means, method or Step executes essentially identical function or realizes essentially identical function.It is described herein because can use according to the present invention Corresponding embodiment.

Claims (11)

1. a kind of radial type operation tool handle, comprising:

Power disk；

Two or more longitudinal portions；

One or more radial type components；

For releasedly and tool attachment component,

Wherein one or more of radial type components allow each of the two or more parts part relative to Other parts are rotated by 360 °.

2. radial type operation tool handle according to claim 1, wherein one or more of radial type components allow The two or more parts are carried out hinged with discrete increment.

3. radial type operation tool handle according to claim 1, including four parts, major part, central part, company The radial type component of body portion and broach part and the double offset configurations of two permissions.

4. radial type operation tool handle according to claim 3, wherein in double offset configurations, the main portion Point spatially with the broach partial offset and keep paralleling to the axis for longitudinal major part and broach part.

5. radial type operation tool handle according to claim 4, wherein the space of the major part and broach part Offset can pass through described two radial type component for adjusting.

6. radial type operation tool handle according to claim 2, wherein the discrete increment has 22.5 degree to 45 The rotating range of degree.

7. radial type operation tool handle according to claim 1, wherein the tool is broach.

8. radial type operation tool handle according to claim 1, wherein articulated component includes cam mechanism,

Wherein the cam mechanism allows to adjust the position of two or more parts relative to each other, and

Wherein the cam mechanism allows two or more more parts relative at another in two or more parts In fixed position.

9. radial type operation tool handle according to claim 1, wherein articulated component includes annulus and lock pin.

10. a kind of prepare patient femur using radial type operation tool handle prosthesis handle component to be installed to the spinal canal of femur In method, comprising the following steps:

Radial type operation tool handle is provided to be attached the broach for installing prosthesis handle component, comprising:

Power disk, major lengthwise portion, central longitudinal portion, connector longitudinal portion, broach part, the connection main longitudinal direction portion Divide the second radial type with the first radial type component of central longitudinal portion, the connection central longitudinal portion and connector part Component, and it is connected to the broach part of connector longitudinal portion；

Broach is connected to broach part；

Adjusting the first and second radial type components is spatially offset major lengthwise portion with broach part；

Insertion radial type operation tool handle simultaneously pulls spinal canal by operative incision；

Position radial type operation tool handle and broach；

Femur pipe is formed by percussion power disk to prepare spinal canal；

It removes radial type operation tool handle and is pulled out from spinal canal.

11. according to the method described in claim 10, wherein:

Articulated operation tool handle can be configured to left or right hip replacement surgery；

Depending on the physical trait of patient, one or two radial type component is able to use to adjust major lengthwise portion and broach Spatial offset between part.